Insulator-support



PATENT OFFICE.

BERRYB. JACKSON, 0F MUDLICK, KENTUCKY.

INSULA'ron-SUPPORT.

Specification of Letters Patent. Patented J une 14, 1921.

Application filed March 30, 1920. Serial No. 370,052.

To all whom it, may concern:

Be it known that I, ,BERRY B. JACKSON, a citizen of the United States,residing in Mudlick, in the county y0f Monroe and State of Kentucky,have invented certain new and useful Improvements in Insulator-Supports,of which the following is a specification.

The invention relates toan insulator support, and more4 particularly tothe class of cross head supports `for insulators used in current linewires. f

The primary object of the invention is the provision of an insulator ofthis lcharacter, wherein the insulator members are mounted upon thecross head or support in a novel manner so that anyone of the saidinsulator members can be detached at will should the occasion require,the support being also of novel form so as to permit the convenient andeasy fastening to a pole, standard or the like. y

Another object of the invention is the provision of aninsulator support,wherein the cross head which is adapted to be car# ried upon a pole orother upright is materially strengthened andthe reinforcing` mediumtherefor is constructed to permit the convenient and easy fastening ofinsulator members thereon so that the same will be carried by the crosshead for use in Stringing current line wires.

A further object of the invention is the provision of an insulatorsupport of this character, wherein the reinforcing medium for the crosshead also constitutes a brace therefor, "the cross head being formed inseveral sections superimposed upon each other and thereby enabling theclamping of the reinforcement which latter is constructed in aparticular manner to permit the detachable engagement of insulatormembers therewith, the fastening of the insulator members in positionserve to secure the sections of the cross head together.

A still further object of the invention is the provision of an insulatorsupport which is extremely simple in construction, readily and easilyassembled and mounted for use,

strong, durable and inexpensive to manufacture and install.

lVith these and other objects in view,fthe

invention consists in the features of conand pointed out inthe claimshereunto appended.

In the accompanying drawings:

TFigure l is a fragmentary elevation of a pole showing the insulatorsupport constructed in accordance with the invention carried thereon andinsulator members engaged upon the support.

Fig. 2 is a sectional view of the line 2---2 of Fig. l.

F ig. 3 is vertical longitudinal sectional view through tie supportshowing several of the insulator members in vertical section. y

Fig. a is a detailed perspective view of the reinforcing medium for theinsulator support.

Similar reference characters indicate corresponding parts throughout`the several views in the drawing.

Referring to the drawing in detail, A designates generally theportion ofa pole or other upright for carrying an insulator support, the latterbeing hereinafter described in detail.

The insulator lsupport comprisesv a pair of bars 5 and 6 respectively,preferably of the same length with respect to each other, the bar 6being superimposed upon the bar 5, which latter medially thereof issecured to the pole A preferably through the medium of a cross pin 7,which is secured transversely in said pole and bar, although it is to beunderstood that the bar 5 can be otherwise secured.

The bar G superimposed upon the bar 5 is removable therefrom andcontains at intervals along the longitudinal center thereof elongatedslots 8, while in the under face of said bar G is a channel or groove 9with which communicate the slots S and adapted to be interposed betweenthe bars 5 and 6 is a reinforcing medium constituting a hangerhereinafter fully described.`

The reinforcing medium constituting the hanger is preferably made from arod bent intermediate its ends to provide a plurality of alternatestraight stretches l0 and inverted substantially U-shaped tines 11forming insulator engaging shanks which are disposed vertically and areadapted to be received in and project upwardly through the slots 8 inthe bar 6, while the straight stretches l() are designed to rest uponthe top face of the bar 5 and be accommodated in the groove or channel 9in said bar 6, the end portions of the rod being trained about theextremities of the bar 5, which are suitably notched at 12 toaccommodate these end portions, the latter being extended downwardly inconvergent relation to each other to provide diagonally or angular-lydisposed braces 13, having eye extremities 141, the latter being engagedby a suitable fastener 15 passed through and driven into the pole Abeneath the cross head of the insulator support.

rlhe shanks 11 are provided With external threads 16 so that on each ofthese Shanks can be detachably secured an insulator member 17 to whichis secured an electric line Wire in the ordinary Welllznown manner.

On the securing` of the insulator member 17 upon the respective shanks11, the bar 6 is clamped in superimposed position upon the bar 5 to holdthe said bars .and reinforcing rod together as a unit.

The bars 5 and 6 are preferably made from Wood and as usual theinsulator' members 17 are made from porcelain, glass or other insulatingmaterial.

It Will be apparent that the insulator support when constructed andassembled in a manner as hereinbefore set forth affords a strong andunitary carrier for the insulator members 17 the cross head formed bythe bars 5 and G being held rigid by the braces 13 and said support canbe readily assembled and disassembled as the occasion requires.

In the drawing the reinforcing medium is shown made from a round rod incrosssection, yet said rod may be otherwise shaped in crosssection, asmay be optional in the manufacture of the insulator support.

From the foregoing, it is believed that the construction and manner ofassemblage of the insulator support will be clearly understood andtherefore a more extended explanation has been omitted.

What is claimed is:

1. An insulator support of the character described, comprising a pair ofbars, one superimposed relative to the other, and provided Withapertures, a reinforcing member interposed between the bars and havingprojections extended through apertures in the uppermost bar and providedwith means for the fastening of insulator members thereon, and endportions extending from the reinforcing member and inclined toward eachother and provided with securing means at their ends.

2. An insulator support of the character described, comprising a pair ofmembers, one superimposed relativeto the other, and having openings, arod interposed between said members, and having upstanding threadedshanlrs, extending through said openings, insulator members detachablyengaged on the threaded shank, and end portions on said rod directedVtoward each other and provided with securing means.

In Witness whereof I aiiix my signature hereto.

BERRY B. JAcKsoN.

